iOS 16.6.1 (build 20G81) is an official Apple over-the-air update for the iPhone 12 Pro Max, released on 2023-09-18T17:21:32Z. The update package is 3.84 GB. This is a delta (partial) update that requires 14.8 already installed. This update is no longer signed by Apple, meaning it can no longer be applied on-device through Settings.

Payload file: 474d0fc859a69b187899fc03c2b1db81810f8b4f.zip.